Successful High Traffic Chip Seal Construction

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by Scott Shuler, Asphalt Inst, Lexington, United States,

Document Type: Proceeding Paper

Part of: Materials: Performance and Prevention of Deficiencies and Failures

Abstract: Chip seal coats are used to extend pavement service life by reducing water and air infiltration and improving skid resistance. Application of chip seals is usually limited to low-traffic volume facilities for several reasons. This paper describes the first of four experimental field projects designed to demonstrate the potential use and effectiveness of chip seal applications on high traffic volume asphalt concrete pavements. This report documents the successful construction of three of these full scale experiments and the several types of chip seal treatments placed. Methods used for calibration of equipment, traffic control. design, and construction process essential for successful application of chip seals on high traffic pavements are described. In addition, a promising new version of a laboratory test is described as a method of predicting adhesive qualities of chip seal binders in advance of construction.

Subject Headings: Asphalt pavements | Pavement design | Construction methods | Traffic volume | Asphalt concrete | Concrete pavements |

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